Downloaded 203 times
More Related Content
![Comet [autosaved]](https://cdn.slidesharecdn.com/ss_thumbnails/cometautosaved-211118082449-thumbnail.jpg?width=640&height=640&fit=bounds)
Similar to Comets asteroids meteors wilson 2013 with foldable
Comets asteroids meteors wilson 2013 with foldable
- 1. Comets, Asteroids, andMeteors- Oh My!
- 2.
- 3. Comets • Description: Coldclumps of gases and dusty ice from the outer parts of the solar system • Comet means long haired star • Called “Dirty Snowballs”
- 4. Comet • 3 parts: –Nucleus – Coma – Tail: always points away from sun
- 5.
- 6. Parts Explained • Nucleus– mass of ice and frozen gas • Coma – cloud of gas that surrounds the nucleus • Tail – formed when the comet travels near the sun; it’s the nucleus vaporizing
- 7. Comet Orbits • Cometshave long, narrow elliptical orbits • Short period comets are found in the Kuiper Belt • Long period comets are found in the Oort Cloud • Sometimes, comets get too close to the sun, and then…
- 8.
- 9.
- 10.
- 11.
- 12.
- 13.
- 14. In 1994, CometShoemaker-Levy 9 collided with Jupiter.
- 15.
- 16. Asteroids • Description: Rockyremains from the formation of the solar system • Notable Asteroids: – Ceres – now a dwarf planet, only one in the asteroid belt – Vesta – can be seen without a telescope
- 17. Asteroids • Composition: – Rocky,iron, or rocky-iron • Location/Orbit: – Asteroid Belt – between Mars and Jupiter – Trojans – orbit with a planet – Near Earth Asteroids – cross the Earth’s orbit
- 18. Asteroid Belt The region betweenthe orbits of Mars and Jupiter, where many asteroids are found.
- 19. Asteroids • Size: Variesfrom a few hundred feet to a few hundred miles • Jupiter’s relationship with asteroids: – Scientists believe the asteroid belt is the remains of a planet that never formed because of Jupiter’s gravity • Evidence asteroids have hit planets: – Impact craters like the one thought to have caused the dinosaur extinction
- 20.
- 21. Asteroids Summary • Notall asteroids are located in the asteroids belt and can pass near Earth • Jupiter’s gravity kept the asteroids from forming a planet • Some asteroids orbit just before and after Jupiter • Largest asteroid, Ceres, is 580 mi across but most are less than a few miles across
- 22. Asteroid Impacts Summary •Scientists think an asteroid impact near Mexico caused the dinosaur extinction. • Chicxulub Crater in Mexico • Video
- 23.
- 24.
- 25. Meteors • Description: Rockyor metal debris in space; most no bigger than a pebble • Meteoroid: a small chunk of rock or dust in space • Meteor: a streak of light in the sky produced by the burning of a meteoroid in Earth’s atmosphere • Meteorite: a meteoroid that has hit Earth’s surface
- 26. Meteoroids • Meteoroids aresmall chunks of rock and dust left over from asteroids and comets that pass by the Earth. • Composition: rocky, iron, or mixed • Location/orbit: Found within the path of the Earth’s orbit around the sun.
- 27. Meteoroids • Types: – Stony –Iron – Stony-Iron • Meteor Shower: yearly predictable meteors when Earth passes through comet or asteroid debris
- 28. Meteors • 3 types: •Meteor: a streak of light in the sky produced by the burning of a meteoroid in Earth’s atmosphere • Meteoroid: a chunk of rock or dust in space • Meteorite: a meteoroid that has hit Earth’s surface Meteor Impact Crater in Arizona.
- 29.
- 30.